Kaara Drill
Ko te kara keri hei tetahi waahanga o te aho wiri he putunga ahumahi e whakamahia ana ki te keri ki te whenua kia pai ai te taumaha mo te moka mo te keri.Ka whakamahia ki te hono ki te putorino drill.Ko te nuinga o nga momo riuwau maminga me te torino.Ko ta maatau mahi whakangao kua tohua ki te API spec 7-1.Ko te kara o te drill he mea hanga ki te AISI 4145 H ranei 4145 H Whakarerekehia te maitai koranu.Ka takahia nga poka mai i te taha kotahi kaore he taurite.Ko nga kara puia katoa he mea whakamahana ki te wera me te pakeke i roto i te 285 ki te 341 BHN, ka whakamanahia kia kotahi inihi i raro i te mata o te paipa.
He kaha me te pakeke o nga kara o te miihini aukume i te aukati i te wawaotanga autō ka whakararu i te tika o nga rangahau autō.He mea hanga mai i nga taonga rino motuhake me te iti o te uruhanga, nga taonga miihini teitei me te aukati pai ki te pakaru o te waikura.
Ka tukuna e matou he kara wiri kirihipi, kara drill torino me nga kara drill kore-aukume;ko o ratou rahi mai i te 3-1/8 ki te 11 inihi.I tua atu i nga karaera drill i te teepu i raro nei, ka taea e matou te tuku i etahi atu karaera drill i runga i te tono a nga kaihoko.
| Tūemi | Ingoa | Porowhita, Slick ranei | OD | ID | hononga taputapu | Ko te diameter bevel i roto | Rauemi | Te roanga katoa | |
| in | in | Hononga | ft | ||||||
| 1 | karaera Drill | Slick or Spiral | 3.1/8 | 1.1/4 | NC26 | 2.3/8″IF | 3 | 4145H | 30, 31 ranei |
| 2 | karaera Drill | Slick or Spiral | 3.1/2 | 1.1/2 | NC26 | 2.3/8″IF | 4145H | 30, 31 ranei | |
| 3 | karaera Drill | Slick or Spiral | 4.1/8 | 2 | NC31-41 | 2.7/8″IF | 3.61/64 | 4145H | 30, 31 ranei |
| 4 | karaera Drill | Slick or Spiral | 4.3/4 | 2 | NC35-47 | 4.33/64 | 4145H | 30, 31 ranei | |
| 5 | karaera Drill | Slick or Spiral | 5 | 2.1/4 | NC38-50 | 3.1/2″IF | 4.49/64 | 4145H | 30, 31 ranei |
| 6 | karaera Drill | Slick or Spiral | 6 | 2.1/4 | NC44-60 | 5.11/16 | 4145H | 30, 31 ranei | |
| 7 | karaera Drill | Slick or Spiral | 6 | 2.13/16 | NC44-60 | 5.11/16 | 4145H | 30, 31 ranei | |
| 8 | karaera Drill | Slick or Spiral | 6.1/4 | 2.1/4 | NC44-62 | 5.7/8 | 4145H | 30, 31 ranei | |
| 9 | karaera Drill | Slick or Spiral | 6.1/4 | 2.13/16 | NC46-62 | 4″IF | 5.29/32 | 4145H | 30, 31 ranei |
| 10 | karaera Drill | Slick or Spiral | 6.1/2 | 2.1/4 | NC46-65 | 4″IF | 6.3/32 | 4145H | 30, 31 ranei |
| 11 | karaera Drill | Slick or Spiral | 6.1/2 | 2.13/16 | NC46-65 | 4″IF | 6.3/32 | 4145H | 30, 31 ranei |
| 12 | karaera Drill | Slick or Spiral | 6.3/4 | 2.1/4 | NC46-67 | 4″IF | 6.9/32 | 4145H | 30, 31 ranei |
| 13 | karaera Drill | Slick or Spiral | 7 | 2.1/4 | NC50-70 | 4.1/2″IF | 6.31/64 | 4145H | 30, 31 ranei |
| 14 | karaera Drill | Slick or Spiral | 7 | 2.13/16 | NC50-70 | 4.1/2″IF | 6.31/64 | 4145H | 30, 31 ranei |
| 15 | karaera Drill | Slick or Spiral | 7.1/4 | 2.13/16 | NC50-72 | 4.1/2″IF | 6.43/64 | 4145H | 30, 31 ranei |
| 16 | karaera Drill | Slick or Spiral | 7.3/4 | 2.13/16 | NC56-77 | 7.19/64 | 4145H | 30, 31 ranei | |
| 17 | karaera Drill | Slick or Spiral | 8 | 2.13/16 | NC56-80 | 7.31/64 | 4145H | 30, 31 ranei | |
| 18 | karaera Drill | Slick or Spiral | 8.1/4 | 2.13/16 | 6.5/8″REG | 7.45/64 | 4145H | 30, 31 ranei | |
| 19 | karaera Drill | Slick or Spiral | 9 | 2.13/16 | NC61-90 | 8.3/8 | 4145H | 30, 31 ranei | |
| 20 | karaera Drill | Slick or Spiral | 9.1/2 | 3 | 7.5/8″REG | 8.13/16 | 4145H | 30, 31 ranei | |
| 21 | karaera Drill | Slick or Spiral | 9.3/4 | 3 | NC70-97 | 9.5/32 | 4145H | 30, 31 ranei | |
| 22 | karaera Drill | Slick or Spiral | 10 | 3 | NC70-100 | 9.11/32 | 4145H | 30, 31 ranei | |
| 23 | karaera Drill | Slick or Spiral | 11 | 3 | 8.5/8″REG | 10.1/2 | 4145H | 30, 31 ranei | |
| Tuhipoka: | Mena he whakaritenga motuhake to te kiritaki, hei tauira te whakahuihui, te hurihuri makariri, te hanga me te pakaru, te here uaua (ARNCO 100XT ARNCO 300XT me etahi atu), te paninga o roto (TK34 TK34PTC2000, me etahi atu), te Stress- Relief Pin, Pouaka Whakamuri Poha, Rerenga Elevator, slip Recess tēnā koa whakapā mai. | ||||||||
| Kara Drill Kore-Magetic | ||
| Kōeke | Te Kaha Tensile Iti | |
| psi | Mpa | |
| 1 | 90000 | 621 |
| 2 | 9000 | 621 |
| 3 | 115000 | 793 |
| **Ka taea te whakarite i te kara drill kore-magetic kia rite ki te hoahoa a te kaihoko.Tena koa tirohia nga rahi o te kara drill. | ||
| Kara Drill Spiral | |||||||||
| OD (i roto) | 4 3/4 | 6 1/4 | 6 3/4 | 7 1/4 | 7 1/2 | 8 | 9 1/2 | 10 | 11 |
| Hōhonu o te Tapahi (i roto) | 7/32 ±1/32 | 9/32 ±1/16 | 5/16 ±1/16 | 11/32 ±1/16 | 11/32 ±1/16 | 3/8 ±1/16 | 13/32 ±3/32 | 7/16 ±3/32 | 15/32 ±3/32 |
| Pitch Porowhita (i roto) | 38 ±1 | 42 ±1 | 46 ±1 | 64 ±1 | 64 ±1 | 68 ±1 | 72 ±1 | 76 ±1 | 80 ±1 |
| ** Ka taea te whakarite i te kara Drill kia rite ki te hoahoa a te kaihoko. | |||||||||
Ko nga kara o te Drill he hononga mahi taumaha nui i hangaia mai i te pae totoka o te AISI 4145H koranu whakarewa.To tatou kara drill paerewa e whakaratohia ana ki te "rite hurihia" ahua mutu mata.?Ko nga pae paerewa katoa ka whakawhiwhia ki te whakamaarama wera e whakarato ana ki a raatau nga ahuatanga miihini e tika ana.
Ka taia nga tutaki ka paheke.?Katoa o tatou kara keri he mea hanga ki roto
kia rite ki te API spec 7, Q1 me te mahi 7G e taunaki ana, ina tika ana.
Rahi Paerewa, Poka, Hononga
| Kara Drill Rahi Hononga me te Momo | Min. OD | Poaka | Te roa | Te kaha piko ōwehenga*** | Kara Drill Wt. |
| (i roto.) | (i roto.) | (ft.) | (lb.) | ||
| NC 26 (2-3/8 IF) | 3-1/2 | 1-1/2 | 30 | 2.42:1 | 801 |
| NC 31 (2-7/8 IF) | 4-1/8 | 2 | 30 | 2.43:1 | 1041 |
| NC 38 (3-1/2 IF) | 4-3/4 | 2-1/4 | 31 | 1.85:1 | 1451 |
| NC 38 (3-1/2 IF) | 5 | 2-1/4 | 31 | 2.38:1 | 1652 |
| NC 44 | 6 | 2-1/4 | 31 | 2.49:1 | 2561 |
| NC 44 | 6 | 2-13/16 | 31 | 2.84:1 | 2353 |
| NC 44 | 6-1/4 | 2-1/4 | 31 | 2.91:1 | 2806 |
| NC 46 (4 IF) | 6-1/4 | 2-13/16 | 31 | 2.63:1 | 2598 |
| NC 46 (4 IF) | 6-1/2 | 2-1/4 | 31 | 2.76:1 | 3085 |
| NC 46 (4 IF) | 6-1/2 | 2-13/16 | 31 | 3.05:1 | 2877 |
| NC 46 (4 IF) | 6-3/4 | 2-1/4 | 31 | 3.18:1 | 3364 |
| NC 50 (4-1/2 IF) | 7 | 2-1/4 | 31 | 2.54:1 | 3643 |
| NC 50 (4-1/2 IF) | 7 | 2-13/16 | 31 | 2.73:1 | 3434 |
| NC 50 (4-1/2 IF) | 7-1/4 | 2-13/16 | 31 | 3.12:1 | 3714 |
| NC 56 | 8 | 2-13/16 | 31 | 3.02:1 | 4675 |
| 6-5/8 REG. | 8 | 2-13/16 | 31 | 2.60:1 | 4675 |
| 6-5/8 REG. | 8-1/4 | 2-13/16 | 31 | 2.93:1 | 5016 |
| 7-5/8 REG. | 9-1/2 | 3 | 31 | 2.81:1 | 6727 |
| 7-5/8 REG.** | 9-3/4 | 3 | 31 | 3.09:1 | 7130 |
| 8-5/8 REG.** | 11 | 3 | 30 | 2.78:1 | 8970 |
| ** Mata taipana iti *** Te owehenga o te pouaka ki te pinea waahanga waahanga - Tirohia te API RP7G mo nga taipitopito Tuhipoka: Kei te waatea etahi atu rahi me nga hononga me etahi atu waahanga kua tohua | |||||
| Taonga Miihini | ||||||
| TTT | Te kaha tuku 0.2Mpa | Te kaha tensile b Mpa | Whakaroa 4% | Mārō(Brinell) | Uara PAPA(CHAPPY-V) | |
| mm | i roto i te inihi | |||||
| 79.4-171.4 | 3 1/8-6 3/4 | ≥ 758 | ≥ 965 | ≥ 13 | 285-341 | ≥ 54 |
| 177.8-279.4 | 7-11 | ≥ 689 | ||||
